EP3783273B1 - Indoor unit of air conditioner and blade unit applied to same - Google Patents
Indoor unit of air conditioner and blade unit applied to same Download PDFInfo
- Publication number
- EP3783273B1 EP3783273B1 EP20201610.1A EP20201610A EP3783273B1 EP 3783273 B1 EP3783273 B1 EP 3783273B1 EP 20201610 A EP20201610 A EP 20201610A EP 3783273 B1 EP3783273 B1 EP 3783273B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- buffer
- coupling
- indoor unit
- coupling member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008878 coupling Effects 0.000 claims description 90
- 238000010168 coupling process Methods 0.000 claims description 90
- 238000005859 coupling reaction Methods 0.000 claims description 90
- 239000000463 material Substances 0.000 claims description 13
- 239000003507 refrigerant Substances 0.000 description 6
- 235000014121 butter Nutrition 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/067—Evaporator fan units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/146—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
Definitions
- the present invention relates to an indoor unit of an air conditioner, and a blade unit applied to the indoor unit, and more particularly, to an indoor unit of an air conditioner having an improved structure for preventing vibrations and noise due to rotation of a blade, and a blade unit applied to the indoor unit.
- an air conditioner is an electronic appliance for maintaining indoor air at pleasant temperature using a cooling cycle of refrigerants.
- the air conditioner includes an indoor unit, an outdoor unit, and a refrigerant pipe, wherein the indoor unit includes a heat exchanger, a blower fan, etc. and is installed indoor, the outdoor unit includes a heat exchanger, a blower fan, a compressor, a condenser, etc. and is installed outdoor, and the refrigerant pipe connects the indoor unit to the outdoor unit and circulates refrigerants.
- the air conditioner can be classified into a stand type air conditioner in which an indoor unit is installed on the floor, a wall-mounted air conditioner in which an indoor unit is mounted on a wall, and a ceiling type air conditioner in which an indoor unit is mounted on a ceiling, according to places where the indoor unit is installed.
- the indoor unit is embedded into or hung on the ceiling.
- the indoor unit of the ceiling type air conditioner Since the indoor unit of the ceiling type air conditioner is mounted on the ceiling, an inlet for inhaling indoor air, and an outlet for discharging air heat-exchanged through the heat exchanger to the indoor space are disposed in the lower part of the main body.
- the indoor unit of the ceiling type air conditioner can be classified into a 1-way type with a single outlet and a 4-way type with four outlets forming a quadrangle, according to the number of outlets.
- the indoor unit of the air conditioner includes a blade for adjusting a direction in which heat-exchanged air is discharged, in the outlet.
- the blade is rotatably coupled with one part of the outlet.
- the blade is coupled with a motor at one end, and receives a rotatory force generated by the motor to rotate.
- the blade is configured to be rotatable in both directions.
- the blade rotates in both directions in the outlet to adjust the movement direction of heat-exchanged air in the up-down direction.
- vibrations and noise may be generated when the motor transfers a rotatory force to the blade.
- a connection axis along which the blade is coupled with the motor is misaligned so that vibration sound of the motor and friction sound of the blade may be loudly generated.
- JPH11-14134A discloses an indoor unit of an air conditioner comprising a main body, an air outlet, a wind deflection plate including rotating shafts, a motor including a rotation shaft and a joint member interposed between the rotating shaft of the wind direction plate and the rotating shaft of the motor.
- An aspect of the present invention is to provide an indoor unit of an air conditioner having an improved structure for preventing vibrations and noise of a blade due to vibrations of a motor when the blade rotates, and a blade unit applied to the indoor unit.
- an indoor unit of an air conditioner according to claim 1.
- Optional features are set out in the dependent claims. Other examples that do not fall within the scope of the claims relate to exemplary embodiments of the present disclosure.
- the indoor unit of the air conditioner according to a technical concept of the present invention, and the blade unit applied to the indoor unit can prevent vibrations and noise of the blade due to vibrations of the motor when the blade rotates.
- an indoor unit of a ceiling type air conditioner will be described as an example.
- a blade unit according to an embodiment can be applied to an indoor unit of another type air conditioner, such as an indoor unit of a stand type air conditioner and an indoor unit of a wall-mounted air conditioner.
- FIG. 1 is an exploded perspective view showing an indoor unit of an air conditioner and a blade unit applied to the indoor unit
- FIG. 2 is a cross-sectional view schematically showing an indoor unit of an air conditioner according to an embodiment of the invention.
- an indoor unit 1 of an air conditioner includes a main body 10 configured to be hung on or embedded into a ceiling, and a bottom panel 20 coupled with the lower part of the main body 10.
- the main body 10 may be in the shape of a box, and may include a heat exchanger 12 configured to heat-exchange inhaled indoor air with refrigerants, a blower fan 11 configured to make air flow forcedly, and a control unit 17 configured to control operations of the indoor unit 1 of the air conditioner.
- the main body 10 may include an upper plate 10a and side plates 10b forming the front, back, left, and right appearances of the air conditioner.
- the main body 10 may include a scroll part 15 configured to guide air heat-exchanged through the heat exchanger 12 towards an outlet 13.
- an inlet 14 configured to inhale indoor air to the inside of the main body 10, and the outlet 13 configured to discharge heat-exchanged air to the indoor space may be provided.
- a wind-direction control member 19 may be provided to adjust the left-right direction of discharged air.
- the heat exchanger 12 may include a tube 12b through which refrigerants flow, and a plurality of heat-exchange pins 12b contacting the tube 12a to widen a heat transfer area.
- the heat exchanger 12 may be inclined to be at nearly right angles to the direction of air flow.
- a guide rib 16 may be provided between the heat-exchanger 12 and the inlet 14, to guide indoor air inhaled into the inside of the main body 10 through the inlet 14 towards the heat exchanger 12.
- the guide rib 16 may be inclined to be at nearly right angles to the position of the heat exchanger 12.
- a drain cover 18 may be provided below the heat exchanger 12. Condensation water collected in the drain cover 18 may be drained to the outside through a drainage hose (not shown).
- the blower fan 11 may be rotated by a driving force of a driving motor (not shown) to make air flow forcedly.
- a rotating shaft 11a of the blower fan 11 may be disposed to be nearly horizontal to the ground.
- the blower fan 11 may be a crossflow fan.
- the bottom panel 20 may include a grill 30 disposed to correspond to the inlet 14 in order to prevent foreign materials from entering the inside of the main body 10, and a panel outlet 21 disposed to correspond to the outlet 13.
- a blade unit 100 may be rotatably disposed to open or close the panel outlet 21 or to adjust the up-down direction of discharged air.
- the panel outlet 21, which is formed at the bottom panel 20, may be connected to the outlet 13. Accordingly, in the following description, the outlet 13 and the panel outlet 21 will be collectively called an outlet 21.
- the bottom panel 20 may include a filter member 24 configured to filter out foreign materials from air entered the inside of the main body 10 through the inlet 14.
- the filter member 24 may be cleaned or replaced with new one.
- the grill 30 may be configured to be selectively opened with respect to the bottom panel 20.
- the grill 30 may rotate to be opened or closed in the state in which it is fixed and supported on the bottom panel 20 at its rear part.
- the grill 30 may be disposed in front of the filter member 24 of the bottom panel 20, and at least one part of the grill 30 may be cut to form a grill inlet 31.
- FIG. 3 is an exploded perspective view showing the blade unit 100 according to an embodiment
- FIG. 4 is a cross-sectional view of the blade unit 100 cut along a line A-A of FIG. 3
- FIG. 5 is a side view showing a blade in which a coupling member of FIG. 3 is formed
- FIG. 6 shows a buffer member in the blade unit 100 of FIG. 3
- FIG. 7 shows a side of the butter member of FIG. 6 in which a buffer groove is formed
- FIG. 8 shows a connection member of the blade unit 100 of FIG. 3
- FIG. 9 is a front view showing a side of the connection member of FIG. 8 in which a connection groove is formed
- FIG. 10 shows a third coupling member of the blade unit 100 of FIG. 3
- FIG. 11 is an exploded perspective view showing a configuration of the third coupling member of FIG. 10 .
- the blade unit 100 may include a blade 110.
- the blade unit 100 is configured such that the blade 110 disposed in the outlet 21 rotates to adjust the direction of air heat-exchanged in and discharged from the inside of the main body 10.
- the blade 110 may be coupled with one edge of the bottom panel 20 so as to be rotatable in the outlet 21, as shown in FIG. 1 . More specifically, the blade 110 may be hinge-coupled with one edge of the bottom panel 20 to be rotatable.
- the blade 110 may have a shape corresponding to the outlet 21 in order to open or close the outlet 21.
- the blade 110 may be disposed in the inside of the outlet 21, and configured to rotate on the axis of its one edge hinge-coupled with the bottom panel 20.
- the blade 110 includes a body part 115, and coupling members 111 or 119.
- the body part 115 may have a shape corresponding to the outlet 21.
- the body part 115 may be in the shape of a rectangular plate.
- the section of the body part 115 may be smaller than the section of the outlet 21 so that the body part 115 can be positioned in the inside of the outlet 21.
- the coupling members 111 and 119 may be disposed on one edge of the body part 115.
- the coupling members 111 and 119 may couple the body part 115 with the main body 10 or the bottom panel 20 such that the body part 115 is rotatable.
- the coupling members 111 and 119 may be provided as a plurality of coupling members.
- the plurality of coupling members 111 and 119 may be arranged in a straight line on one edge of the body part 115. Accordingly, the blade 110 can rotate on the axis of the straight line formed by the plurality of coupling members 111 and 119.
- the plurality of coupling members 111 and 119 may be respectively disposed on both ends of the body part 115.
- the plurality of coupling members 111 and 119 may include a first coupling member 111 and a second coupling member (not shown).
- the first coupling member 111 is, as shown in FIG. 3 , connected to a motor 140 which will be described later.
- the second coupling member may be positioned to face the first coupling member 111 on the blade 110.
- the second coupling member is connected to the main body 10 or the bottom panel 20 such that the blade 110 is rotatable.
- the first coupling member 111 includes a coupling groove 112 and may include a fixing hole 113.
- the coupling groove 112 may be formed in one side of the first coupling member 111.
- the coupling groove 112 may be, as shown in FIG. 3 , formed in the side of the first coupling member 111 facing the motor 140 which will be described later.
- a buffer member 120 which will be described later is inserted into the coupling groove 112.
- the coupling groove 112 may have a shape corresponding to the shape of the buffer member 120 which will be described.
- the fixing hole 113 may be formed in a surface of the coupling groove 112 which is face the opening of the coupling groove 112.
- a buffer protrusion 122 of the buffer member 120 which will be described later may be inserted into the fixing hole 113. If the buffer protrusion 122 is inserted into the fixing hole 113, the fixing hole 113 may fix the buffer member 120 at the first coupling member 111. However, the fixing hole 113 may be omitted.
- the second coupling member may be positioned to face the first coupling member 111 on the blade 110.
- the second coupling member may be hinge-coupled with the main body 10 or the bottom panel 20 so that the blade 110 can rotate.
- the coupling members 111 and 119 may further include a third coupling member 119.
- the third coupling member 119 may be positioned between the first coupling member 111 and the second coupling member.
- the third coupling member 119 may be positioned on the straight line formed by the first coupling member 111 and the second coupling member.
- the third coupling member 119 may be hinge-coupled with the main body 10 or the bottom panel 20 so that the blade 110 can rotate.
- a plurality of third coupling members 119 may be arranged at regular intervals between the first coupling member 111 and the second coupling member.
- the third coupling member 119 may include an external frame 119a, a buffer part 119b, and a protrusion 119c.
- the external frame 119a may form the outer side portion of the third coupling member 119.
- the buffer part 119b may be inserted into the inside of the external frame 119a.
- the buffer part 119b may be made of a material having a restoring force.
- the butter part 119b may be made of a material having elasticity.
- One end of the protrusion 119c may be inserted into the buffer part 119b, and the other end of the protrusion 119c may extend from the buffer part 119b.
- the protrusion 119c may be coupled with the main body 10 or the bottom panel 20. According to the above-described configuration, the third coupling member 119 may enable the blade 110 to rotate in the outlet 21 by changing the shape of the buffer part 119b.
- the blade unit 100 further includes the motor 140.
- the motor 140 may be installed in the inside of the main body 10 to generate a rotatory force that is transferred to the blade 110.
- the motor 140 includes a rotation transfer member 150.
- the rotation transfer member 150 transfers a rotatory force generated by the motor 140 to the blade 110.
- the configuration of the rotation transfer member 150 will be described later.
- the blade unit 100 further includes the buffer member 120.
- the buffer member 120 is connected to the blade 110 and the rotation transfer member 150 of the motor 140.
- the buffer member 120 may be coupled with the blade 110 at one end, while surrounding a part of the rotation transfer member 150.
- the buffer member 120 may be inserted into one end of the blade 110, while surrounding a part of the rotation transfer member 150.
- the buffer member 120 transfers a rotatory force to the blade 110, while rotating together with the rotation transfer member 150.
- the buffer member 120 inserted into the coupling groove 112 of the first coupling part 111.
- the buffer member 120 may have a shape corresponding to the coupling groove 112.
- the buffer member 120 may be in the shape of a faceted pillar having at least one edge in the longitudinal direction. Accordingly, the buffer member 120 rotates together with the first coupling member 111 in the state in which it is inserted into the coupling groove 112.
- the buffer member 120 may include a buffer body part 121, a buffer protrusion 122, and a buffer groove 123.
- the buffer body part 121 may have a shape corresponding to the coupling groove 112. As shown in FIG. 4 , the buffer body part 121 may be inserted into and rested in the inside of the coupling groove 112 of the first coupling member 111.
- the buffer body part 121 may include a stopping part 121a at one end. The stopping part 121a may extend from one end of the buffer body part 121, and be caught by the first coupling member 111 when the buffer body part 121 is completely inserted into the coupling groove 112. However, the stopping part 121a may be omitted.
- the buffer protrusion 122 may be formed at one end of the buffer body part 121.
- the buffer protrusion 122 may be positioned to correspond to the fixing hole 113 when the buffer body part 121 is inserted into the coupling groove 112.
- the buffer protrusion 122 may extend from the buffer body part 121.
- the buffer protrusion 122 may be inserted into the fixing hole 113 of the first coupling member 111.
- the buffer protrusion 122 may include a first protrusion 122b and a second protrusion 122a.
- the first protrusion 122b may extend from the buffer body part 121.
- the first protrusion 122b may connect the buffer body part 121 to the second protrusion 122a.
- the first protrusion 122b may be inserted into the fixing hole 113.
- the section of the first protrusion 122b may correspond to the inside section of the fixing hole 113.
- the second protrusion 122a may be positioned at one end of the first protrusion 122b.
- the second protrusion 122a may have a shape tapering from its part connected to the first protrusion 122b.
- the second protrusion 122a may be in the shape of a cone.
- the section of one end of the second protrusion 122a may be larger than that of the fixing groove 113.
- One end of the second protrusion 122a may be caught by the outer edge of the fixing hole 113 when the buffer member 120 is completely inserted into the coupling groove 112.
- the buffer groove 123 may be formed in a portion of the buffer body part 121.
- the buffer groove 123 may be formed in a portion of the buffer body part 121 that is opposite to the buffer protrusion 122.
- the rotation transfer member 150 which will be described later may be inserted into the buffer groove 123.
- the buffer groove 123 may have a shape corresponding to the rotation transfer member 150.
- the buffer groove 123 may be in the shape of a pillar having at least one edge in the longitudinal direction.
- the buffer groove 123 may be in the shape of a pillar whose section is in the shape of "+".
- the buffer groove 123 may be in the shape of a faceted pillar having at least one edge at the side.
- the buffer groove 123 may rotate together with the rotation transfer member 150 inserted thereinto to receive a rotatory force.
- the buffer member 120 may be made of a material having a restoring force. Also, the buffer member 120 may be made of a material having elasticity. Accordingly, even when the rotation transfer member 150 and the blade 110 are not aligned on a straight line, the shape of the buffer member 120 may change so as to locate the blade 110 at a predetermined position. Also, the buffer member 120 may prevent vibrations and noise from being generated by vibrations of the motor 140 and rotation of the blade 110. According to an example, the buffer member 120 may include rubber.
- the rotation transfer member 150 is connected to the motor 140 to transfer a rotatory force generated by the motor 140 to the blade 110.
- the rotation transfer member 150 may include a rotation shaft 151 and a connection member 152.
- the rotation shaft 151 may extend from one part of the motor 140.
- the rotation shaft 151 may receive a rotatory force directly from the motor 140 and rotate.
- connection member 152 may be coupled with the rotation shaft 151 at one end, and coupled with the buffer member 120 at the other end.
- the connection member 152 may rotate together with the rotation shaft 151 to transfer a rotatory force to the buffer member 120 connected thereto.
- connection member 152 may include a connection body part 152a, a connection protrusion 152b, and a connection groove 152c.
- connection body part 152a may be coupled with the rotation shaft 151 at one end.
- a connection groove 152c may be formed in the one end of the connection body part 152a.
- the rotation shaft 151 may be inserted into the connection groove 152c.
- the connection groove 152c may be configured such that the connection member 152 can rotate together with the rotation shaft 151 in the state in which the rotation shaft 151 is inserted into the connection groove 152c.
- the connection groove 152c may have a shape corresponding to the rotation shaft 151.
- connection protrusion 152b may extend from the other end of the connection body part 152a.
- the connection protrusion 152b may be formed in a portion of the connection body part 152a that is opposite to the connection groove 152.
- connection protrusion 152b may be coupled with the buffer member 120.
- the connection protrusion 152b may be inserted into the buffer groove 123.
- the connection protrusion 152b may have a shape corresponding to the buffer groove 123.
- connection protrusion 152b and the buffer groove 123 may be in the shape of a pillar whose section is in the shape of "+".
- the connection protrusion 152b and the buffer groove 123 may be in the shape of a faceted pillar having at least one edge at the side.
- the connection protrusion 152b may rotate together with the buffer member 120 in the state in which it is inserted into the buffer groove 123.
- connection member 152 may be made of a material having stiffness that is lower than that of the rotation shaft 151 of the motor 140.
- the rotation shaft 151 of the motor 140 may be made of a metal material
- the connection member 152 may be made of a plastic material. Accordingly, the connection member 152 may prevent the buffer member 120 from being damaged upon rotation, compared to when the rotation shaft 151 made of a metal material is directly connected to the buffer member 120.
- the rotation transfer member 150 and the blade 110 may be not aligned on a straight line.
- the rotation axis of the blade 110 may change to disable the blade 110 to rotate, or the blade 110 may make vibrations and noise upon rotation.
- the buffer member 120 is provided between the motor 140 and the blade 110.
- the buffer member 120 may be made of a material having a restoring force to change its shape according to an external force. Accordingly, when the rotation transfer member 150 and the blade 110 are not aligned on a straight line, the shape of the buffer member 120 may change partially so as to locate the blade 110 at an appropriate position where it can rotate. Therefore, the blade 110 can be easily rotated, and also, vibrations and noise that can be generated due to rotation of the blade 110 can be prevented.
- FIG. 12 shows a blade unit according to another embodiment
- FIG. 13 is an exploded perspective view showing a configuration of the blade unit of FIG. 12
- FIG. 14 is a cross-sectional view of the blade unit cut along a line B-B of FIG. 12 .
- a blade unit 200 may include a blade 210, a buffer member 220, a motor 240, a rotation transfer member 250, and a guide hole 271 to guide the rotation transfer member 250. Comparing to the blade unit 100 of FIG. 3 , the blade unit 200 may further include the guide hole 271 to guide the rotation transfer member 250, and the remaining components of the blade unit 200 may be the same as those of the blade unit 100 of FIG. 3 .
- descriptions about the same components of the blade unit 200 as those of the blade unit 100 of FIG. 3 will be omitted, and the blade unit 200 will be described based on differences from the blade unit 100 of FIG. 3 .
- the guide hole 271 may be disposed in a partition wall 270 forming the outlet 21 in the inside of the bottom panel 20.
- the guide hole 271 may be formed on a straight line on which a first coupling member 211 of the blade 210 and the rotation transfer member 250 are aligned.
- the guide hole 271 may function as a passage through which the motor 240 is connected to the blade 210.
- the guide hole 271 may guide the position of the rotation transfer member 250 connected to the motor 240 when the main body 10 or the bottom panel 20 is installed non-horizontally.
- the rotation transfer member 250 may be supported by the guide hole 271 when the main body 10 or the bottom panel 20 is maintained non-horizontally. Accordingly, the rotation transfer member 250 may be maintained at a predetermined position even when the main body 10 or the bottom panel 20 is installed non-horizontally. Also, since the rotation transfer member 250 is supported by the guide hole 271 when the main body 10 or the bottom panel 20 is installed non-horizontally, the guide hole 271 can reduce load transferred to the rotation transfer member 250. Accordingly, it is possible to prevent the blade unit 200 from being damaged, while improving the reliability of the blade unit 200.
- FIG. 15 shows a modified example of the blade unit 200 of FIG. 12
- FIG. 16 is an exploded perspective view showing a blade unit of FIG. 15 .
- a blade unit 201 may include the blade 210, the buffer member 220, the motor 240, the rotation transfer member 250, the guide hole 271, and a gear unit 280. Comparing to the blade unit 200 of FIG. 14 , the blade unit 201 may further include the gear unit 280, and the remaining components of the blade unit 201 may be the same as those of the blade unit 200 of FIG. 14 . Hereinafter, the blade unit 201 will be described based on differences from the blade unit 200 of FIG. 14 .
- the gear unit 280 may be configured to transfer greater torque to the blade 210 although the same motor 240 is used.
- the gear unit 280 may include a first gear 281 and a second gear 282.
- the first gear 281 may connect a rotation shaft 281a to the motor 240.
- the second gear 282 may couple a rotation shaft 282a with the blade 210.
- the second gear 282 may have a greater diameter than the first gear 281.
- the first gear 281 may be interlocked with the second gear 282. According to the above-described configuration, the second gear 282 can transfer greater torque to the blade 210 than the first gear 281.
- the gear unit 280 may generate great torque although the same motor is used, so as to reduce vibrations and noise that are generated upon use of the high capacity motor 240.
- FIG. 17 shows a blade unit according to another embodiment of the invention.
- a blade unit 300 may include a blade 310, a buffer member 320, a motor 340, and a rotation transfer member 341. Comparing to the blade unit 100 of FIG. 3 , the rotation transfer member 341 of the blade unit 300 is different from the corresponding one of the blade unit 100 of FIG. 3 , and the remaining components of the blade unit 300 are the same as those of the blade unit 100 of FIG. 3 . Hereinafter, the blade unit 300 will be described based on differences from the blade unit 100 of FIG. 3 .
- the rotation transfer member 341 may be provided as a rotation shaft extending from one end of the motor 340. Unlike the blade unit 100 of FIG. 3 , in the blade unit 300, the rotation shaft 341 may be directly coupled with the buffer member 320. The rotation shaft 341 may be inserted into a buffer groove 323 formed in the buffer member 320. Accordingly, the rotation shaft 341 may rotate due to a rotatory force transferred from the motor 340 in the state in which it is inserted into the buffer groove 232, and transfer the rotatory force to the blade 310.
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Description
- The present invention relates to an indoor unit of an air conditioner, and a blade unit applied to the indoor unit, and more particularly, to an indoor unit of an air conditioner having an improved structure for preventing vibrations and noise due to rotation of a blade, and a blade unit applied to the indoor unit.
- In general, an air conditioner is an electronic appliance for maintaining indoor air at pleasant temperature using a cooling cycle of refrigerants. The air conditioner includes an indoor unit, an outdoor unit, and a refrigerant pipe, wherein the indoor unit includes a heat exchanger, a blower fan, etc. and is installed indoor, the outdoor unit includes a heat exchanger, a blower fan, a compressor, a condenser, etc. and is installed outdoor, and the refrigerant pipe connects the indoor unit to the outdoor unit and circulates refrigerants.
- The air conditioner can be classified into a stand type air conditioner in which an indoor unit is installed on the floor, a wall-mounted air conditioner in which an indoor unit is mounted on a wall, and a ceiling type air conditioner in which an indoor unit is mounted on a ceiling, according to places where the indoor unit is installed. In the ceiling type air conditioner, the indoor unit is embedded into or hung on the ceiling.
- Since the indoor unit of the ceiling type air conditioner is mounted on the ceiling, an inlet for inhaling indoor air, and an outlet for discharging air heat-exchanged through the heat exchanger to the indoor space are disposed in the lower part of the main body. The indoor unit of the ceiling type air conditioner can be classified into a 1-way type with a single outlet and a 4-way type with four outlets forming a quadrangle, according to the number of outlets.
- Generally, the indoor unit of the air conditioner includes a blade for adjusting a direction in which heat-exchanged air is discharged, in the outlet. The blade is rotatably coupled with one part of the outlet. The blade is coupled with a motor at one end, and receives a rotatory force generated by the motor to rotate.
- The blade is configured to be rotatable in both directions. The blade rotates in both directions in the outlet to adjust the movement direction of heat-exchanged air in the up-down direction. However, since the blade is directly connected to the motor, vibrations and noise may be generated when the motor transfers a rotatory force to the blade. Also, when the indoor unit of the ceiling type air conditioner is installed non-horizontally to the ceiling, a connection axis along which the blade is coupled with the motor is misaligned so that vibration sound of the motor and friction sound of the blade may be loudly generated.
- JPH11-14134A discloses an indoor unit of an air conditioner comprising a main body, an air outlet, a wind deflection plate including rotating shafts, a motor including a rotation shaft and a joint member interposed between the rotating shaft of the wind direction plate and the rotating shaft of the motor.
- An aspect of the present invention is to provide an indoor unit of an air conditioner having an improved structure for preventing vibrations and noise of a blade due to vibrations of a motor when the blade rotates, and a blade unit applied to the indoor unit.
- In accordance with the present invention, there is provided an indoor unit of an air conditioner according to
claim 1. Optional features are set out in the dependent claims. Other examples that do not fall within the scope of the claims relate to exemplary embodiments of the present disclosure. - The indoor unit of the air conditioner according to a technical concept of the present invention, and the blade unit applied to the indoor unit can prevent vibrations and noise of the blade due to vibrations of the motor when the blade rotates.
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FIG. 1 is an exploded perspective view showing an indoor unit of an air conditioner according to an embodiment of the present invention, and a blade unit applied to the indoor unit. -
FIG. 2 is a cross-sectional view schematically showing an indoor unit of an air conditioner according to the invention. -
FIG. 3 is an exploded perspective view showing the blade unit according to the invention. -
FIG. 4 is a cross-sectional view of the blade unit cut along a line A-A ofFIG. 3 . -
FIG. 5 is a side view showing a blade in which a coupling member ofFIG. 3 is formed. -
FIG. 6 shows a buffer member in the blade unit ofFIG. 3 . -
FIG. 7 shows a side of the butter member ofFIG. 6 in which a buffer groove is formed. -
FIG. 8 shows a connection member of the blade unit ofFIG. 3 -
FIG. 9 is a front view showing a side of the connection member ofFIG. 8 in which a connection groove is formed. -
FIG. 10 shows a third coupling member of the blade unit ofFIG. 3 . -
FIG. 11 is an exploded perspective view showing a configuration of the third coupling member ofFIG. 10 . -
FIG. 12 shows a blade unit according to another embodiment of the invention. -
FIG. 13 is an exploded perspective view showing a configuration of the blade unit ofFIG. 12 . -
FIG. 14 is a cross-sectional view of the blade unit cut along a line B-B ofFIG. 12 . -
FIG. 15 shows a modified example of the blade unit ofFIG. 12 . -
FIG. 16 is an exploded perspective view showing a blade unit ofFIG. 15 . -
FIG. 17 shows a blade unit according to another embodiment of the invention. - Hereinafter, preferred embodiments will be described in detail.
- Also, hereinafter, for convenience of description, an indoor unit of a ceiling type air conditioner will be described as an example. However, a blade unit according to an embodiment can be applied to an indoor unit of another type air conditioner, such as an indoor unit of a stand type air conditioner and an indoor unit of a wall-mounted air conditioner.
-
FIG. 1 is an exploded perspective view showing an indoor unit of an air conditioner and a blade unit applied to the indoor unit, andFIG. 2 is a cross-sectional view schematically showing an indoor unit of an air conditioner according to an embodiment of the invention. - Referring to
FIGS. 1 and2 , anindoor unit 1 of an air conditioner includes amain body 10 configured to be hung on or embedded into a ceiling, and abottom panel 20 coupled with the lower part of themain body 10. - The
main body 10 may be in the shape of a box, and may include aheat exchanger 12 configured to heat-exchange inhaled indoor air with refrigerants, ablower fan 11 configured to make air flow forcedly, and acontrol unit 17 configured to control operations of theindoor unit 1 of the air conditioner. - The
main body 10 may include anupper plate 10a andside plates 10b forming the front, back, left, and right appearances of the air conditioner. Themain body 10 may include ascroll part 15 configured to guide air heat-exchanged through theheat exchanger 12 towards anoutlet 13. - In the lower part of the
main body 10, aninlet 14 configured to inhale indoor air to the inside of themain body 10, and theoutlet 13 configured to discharge heat-exchanged air to the indoor space may be provided. In theoutlet 13, a wind-direction control member 19 may be provided to adjust the left-right direction of discharged air. - The
heat exchanger 12 may include atube 12b through which refrigerants flow, and a plurality of heat-exchange pins 12b contacting thetube 12a to widen a heat transfer area. Theheat exchanger 12 may be inclined to be at nearly right angles to the direction of air flow. - Between the heat-
exchanger 12 and theinlet 14, aguide rib 16 may be provided to guide indoor air inhaled into the inside of themain body 10 through theinlet 14 towards theheat exchanger 12. Theguide rib 16 may be inclined to be at nearly right angles to the position of theheat exchanger 12. - Below the
heat exchanger 12, adrain cover 18 may be provided to collect condensation water generated from theheat exchanger 12. Condensation water collected in thedrain cover 18 may be drained to the outside through a drainage hose (not shown). - The
blower fan 11 may be rotated by a driving force of a driving motor (not shown) to make air flow forcedly. A rotatingshaft 11a of theblower fan 11 may be disposed to be nearly horizontal to the ground. Theblower fan 11 may be a crossflow fan. - The
bottom panel 20 may include agrill 30 disposed to correspond to theinlet 14 in order to prevent foreign materials from entering the inside of themain body 10, and apanel outlet 21 disposed to correspond to theoutlet 13. In thepanel outlet 21, ablade unit 100 may be rotatably disposed to open or close thepanel outlet 21 or to adjust the up-down direction of discharged air. Thepanel outlet 21, which is formed at thebottom panel 20, may be connected to theoutlet 13. Accordingly, in the following description, theoutlet 13 and thepanel outlet 21 will be collectively called anoutlet 21. - The
bottom panel 20 may include afilter member 24 configured to filter out foreign materials from air entered the inside of themain body 10 through theinlet 14. - If the
filter member 24 is used for long periods of time to collect many foreign materials therein, thefilter member 24 may be cleaned or replaced with new one. In this case, in order to easily detach thefilter member 24, thegrill 30 may be configured to be selectively opened with respect to thebottom panel 20. - The
grill 30 may rotate to be opened or closed in the state in which it is fixed and supported on thebottom panel 20 at its rear part. - The
grill 30 may be disposed in front of thefilter member 24 of thebottom panel 20, and at least one part of thegrill 30 may be cut to form agrill inlet 31. - Hereinafter, the
blade unit 100 according to an embodiment of the invention will be described in detail. -
FIG. 3 is an exploded perspective view showing theblade unit 100 according to an embodiment,FIG. 4 is a cross-sectional view of theblade unit 100 cut along a line A-A ofFIG. 3 ,FIG. 5 is a side view showing a blade in which a coupling member ofFIG. 3 is formed,FIG. 6 shows a buffer member in theblade unit 100 ofFIG. 3 ,FIG. 7 shows a side of the butter member ofFIG. 6 in which a buffer groove is formed,FIG. 8 shows a connection member of theblade unit 100 ofFIG. 3 ,FIG. 9 is a front view showing a side of the connection member ofFIG. 8 in which a connection groove is formed,FIG. 10 shows a third coupling member of theblade unit 100 ofFIG. 3 , andFIG. 11 is an exploded perspective view showing a configuration of the third coupling member ofFIG. 10 . - Referring to
FIGS. 3 to 11 , theblade unit 100 may include ablade 110. Theblade unit 100 is configured such that theblade 110 disposed in theoutlet 21 rotates to adjust the direction of air heat-exchanged in and discharged from the inside of themain body 10. - The
blade 110 may be coupled with one edge of thebottom panel 20 so as to be rotatable in theoutlet 21, as shown inFIG. 1 . More specifically, theblade 110 may be hinge-coupled with one edge of thebottom panel 20 to be rotatable. Theblade 110 may have a shape corresponding to theoutlet 21 in order to open or close theoutlet 21. Theblade 110 may be disposed in the inside of theoutlet 21, and configured to rotate on the axis of its one edge hinge-coupled with thebottom panel 20. - According to an example, the
blade 110 includes abody part 115, andcoupling members - The
body part 115 may have a shape corresponding to theoutlet 21. Thebody part 115 may be in the shape of a rectangular plate. The section of thebody part 115 may be smaller than the section of theoutlet 21 so that thebody part 115 can be positioned in the inside of theoutlet 21. - The
coupling members body part 115. Thecoupling members body part 115 with themain body 10 or thebottom panel 20 such that thebody part 115 is rotatable. - The
coupling members coupling members body part 115. Accordingly, theblade 110 can rotate on the axis of the straight line formed by the plurality ofcoupling members - The plurality of
coupling members body part 115. The plurality ofcoupling members first coupling member 111 and a second coupling member (not shown). Thefirst coupling member 111 is, as shown inFIG. 3 , connected to amotor 140 which will be described later. The second coupling member may be positioned to face thefirst coupling member 111 on theblade 110. The second coupling member is connected to themain body 10 or thebottom panel 20 such that theblade 110 is rotatable. - As shown in
FIG. 5 , thefirst coupling member 111 includes acoupling groove 112 and may include a fixinghole 113. - The
coupling groove 112 may be formed in one side of thefirst coupling member 111. Thecoupling groove 112 may be, as shown inFIG. 3 , formed in the side of thefirst coupling member 111 facing themotor 140 which will be described later. Abuffer member 120 which will be described later is inserted into thecoupling groove 112. Thecoupling groove 112 may have a shape corresponding to the shape of thebuffer member 120 which will be described. - The fixing
hole 113 may be formed in a surface of thecoupling groove 112 which is face the opening of thecoupling groove 112. Abuffer protrusion 122 of thebuffer member 120 which will be described later may be inserted into the fixinghole 113. If thebuffer protrusion 122 is inserted into the fixinghole 113, the fixinghole 113 may fix thebuffer member 120 at thefirst coupling member 111. However, the fixinghole 113 may be omitted. - The second coupling member may be positioned to face the
first coupling member 111 on theblade 110. The second coupling member may be hinge-coupled with themain body 10 or thebottom panel 20 so that theblade 110 can rotate. - As shown in
FIG. 3 , thecoupling members third coupling member 119. Thethird coupling member 119 may be positioned between thefirst coupling member 111 and the second coupling member. Thethird coupling member 119 may be positioned on the straight line formed by thefirst coupling member 111 and the second coupling member. Thethird coupling member 119 may be hinge-coupled with themain body 10 or thebottom panel 20 so that theblade 110 can rotate. Also, a plurality ofthird coupling members 119 may be arranged at regular intervals between thefirst coupling member 111 and the second coupling member. - As shown in
FIGS. 10 and11 , thethird coupling member 119 may include anexternal frame 119a, abuffer part 119b, and aprotrusion 119c. - The
external frame 119a may form the outer side portion of thethird coupling member 119. Thebuffer part 119b may be inserted into the inside of theexternal frame 119a. Thebuffer part 119b may be made of a material having a restoring force. Also, thebutter part 119b may be made of a material having elasticity. One end of theprotrusion 119c may be inserted into thebuffer part 119b, and the other end of theprotrusion 119c may extend from thebuffer part 119b. Theprotrusion 119c may be coupled with themain body 10 or thebottom panel 20. According to the above-described configuration, thethird coupling member 119 may enable theblade 110 to rotate in theoutlet 21 by changing the shape of thebuffer part 119b. - The
blade unit 100 further includes themotor 140. - The
motor 140 may be installed in the inside of themain body 10 to generate a rotatory force that is transferred to theblade 110. Themotor 140 includes arotation transfer member 150. Therotation transfer member 150 transfers a rotatory force generated by themotor 140 to theblade 110. The configuration of therotation transfer member 150 will be described later. - The
blade unit 100 further includes thebuffer member 120. - The
buffer member 120 is connected to theblade 110 and therotation transfer member 150 of themotor 140. Thebuffer member 120 may be coupled with theblade 110 at one end, while surrounding a part of therotation transfer member 150. Thebuffer member 120 may be inserted into one end of theblade 110, while surrounding a part of therotation transfer member 150. Thebuffer member 120 transfers a rotatory force to theblade 110, while rotating together with therotation transfer member 150. - The
buffer member 120 inserted into thecoupling groove 112 of thefirst coupling part 111. Thebuffer member 120 may have a shape corresponding to thecoupling groove 112. Thebuffer member 120 may be in the shape of a faceted pillar having at least one edge in the longitudinal direction. Accordingly, thebuffer member 120 rotates together with thefirst coupling member 111 in the state in which it is inserted into thecoupling groove 112. - According to an example, the
buffer member 120 may include abuffer body part 121, abuffer protrusion 122, and abuffer groove 123. - The
buffer body part 121 may have a shape corresponding to thecoupling groove 112. As shown inFIG. 4 , thebuffer body part 121 may be inserted into and rested in the inside of thecoupling groove 112 of thefirst coupling member 111. Thebuffer body part 121 may include a stoppingpart 121a at one end. The stoppingpart 121a may extend from one end of thebuffer body part 121, and be caught by thefirst coupling member 111 when thebuffer body part 121 is completely inserted into thecoupling groove 112. However, the stoppingpart 121a may be omitted. - The
buffer protrusion 122 may be formed at one end of thebuffer body part 121. Thebuffer protrusion 122 may be positioned to correspond to the fixinghole 113 when thebuffer body part 121 is inserted into thecoupling groove 112. Thebuffer protrusion 122 may extend from thebuffer body part 121. Thebuffer protrusion 122 may be inserted into the fixinghole 113 of thefirst coupling member 111. - The
buffer protrusion 122 may include afirst protrusion 122b and asecond protrusion 122a. Thefirst protrusion 122b may extend from thebuffer body part 121. Thefirst protrusion 122b may connect thebuffer body part 121 to thesecond protrusion 122a. Thefirst protrusion 122b may be inserted into the fixinghole 113. The section of thefirst protrusion 122b may correspond to the inside section of the fixinghole 113. - The
second protrusion 122a may be positioned at one end of thefirst protrusion 122b. Thesecond protrusion 122a may have a shape tapering from its part connected to thefirst protrusion 122b. Thesecond protrusion 122a may be in the shape of a cone. The section of one end of thesecond protrusion 122a may be larger than that of the fixinggroove 113. One end of thesecond protrusion 122a may be caught by the outer edge of the fixinghole 113 when thebuffer member 120 is completely inserted into thecoupling groove 112. - The
buffer groove 123 may be formed in a portion of thebuffer body part 121. Thebuffer groove 123 may be formed in a portion of thebuffer body part 121 that is opposite to thebuffer protrusion 122. Therotation transfer member 150 which will be described later may be inserted into thebuffer groove 123. Thebuffer groove 123 may have a shape corresponding to therotation transfer member 150. - The
buffer groove 123 may be in the shape of a pillar having at least one edge in the longitudinal direction. Thebuffer groove 123 may be in the shape of a pillar whose section is in the shape of "+". Thebuffer groove 123 may be in the shape of a faceted pillar having at least one edge at the side. Thebuffer groove 123 may rotate together with therotation transfer member 150 inserted thereinto to receive a rotatory force. - The
buffer member 120 may be made of a material having a restoring force. Also, thebuffer member 120 may be made of a material having elasticity. Accordingly, even when therotation transfer member 150 and theblade 110 are not aligned on a straight line, the shape of thebuffer member 120 may change so as to locate theblade 110 at a predetermined position. Also, thebuffer member 120 may prevent vibrations and noise from being generated by vibrations of themotor 140 and rotation of theblade 110. According to an example, thebuffer member 120 may include rubber. - The
rotation transfer member 150 is connected to themotor 140 to transfer a rotatory force generated by themotor 140 to theblade 110. Therotation transfer member 150 may include arotation shaft 151 and aconnection member 152. - The
rotation shaft 151 may extend from one part of themotor 140. Therotation shaft 151 may receive a rotatory force directly from themotor 140 and rotate. - The
connection member 152 may be coupled with therotation shaft 151 at one end, and coupled with thebuffer member 120 at the other end. Theconnection member 152 may rotate together with therotation shaft 151 to transfer a rotatory force to thebuffer member 120 connected thereto. - As shown in
FIG. 8 , theconnection member 152 may include aconnection body part 152a, aconnection protrusion 152b, and aconnection groove 152c. - The
connection body part 152a may be coupled with therotation shaft 151 at one end. In the one end of theconnection body part 152a, aconnection groove 152c may be formed. Therotation shaft 151 may be inserted into theconnection groove 152c. Theconnection groove 152c may be configured such that theconnection member 152 can rotate together with therotation shaft 151 in the state in which therotation shaft 151 is inserted into theconnection groove 152c. Theconnection groove 152c may have a shape corresponding to therotation shaft 151. - The
connection protrusion 152b may extend from the other end of theconnection body part 152a. Theconnection protrusion 152b may be formed in a portion of theconnection body part 152a that is opposite to theconnection groove 152. - The
connection protrusion 152b may be coupled with thebuffer member 120. Theconnection protrusion 152b may be inserted into thebuffer groove 123. Theconnection protrusion 152b may have a shape corresponding to thebuffer groove 123. - The
connection protrusion 152b and thebuffer groove 123 may be in the shape of a pillar whose section is in the shape of "+". Theconnection protrusion 152b and thebuffer groove 123 may be in the shape of a faceted pillar having at least one edge at the side. Theconnection protrusion 152b may rotate together with thebuffer member 120 in the state in which it is inserted into thebuffer groove 123. - The
connection member 152 may be made of a material having stiffness that is lower than that of therotation shaft 151 of themotor 140. For example, therotation shaft 151 of themotor 140 may be made of a metal material, and theconnection member 152 may be made of a plastic material. Accordingly, theconnection member 152 may prevent thebuffer member 120 from being damaged upon rotation, compared to when therotation shaft 151 made of a metal material is directly connected to thebuffer member 120. - In general, if the
main body 10 is installed non-horizontally, therotation transfer member 150 and theblade 110 may be not aligned on a straight line. In this case, the rotation axis of theblade 110 may change to disable theblade 110 to rotate, or theblade 110 may make vibrations and noise upon rotation. - However, in the
blade unit 100 according to the above-described embodiment of the invention, thebuffer member 120 is provided between themotor 140 and theblade 110. Thebuffer member 120 may be made of a material having a restoring force to change its shape according to an external force. Accordingly, when therotation transfer member 150 and theblade 110 are not aligned on a straight line, the shape of thebuffer member 120 may change partially so as to locate theblade 110 at an appropriate position where it can rotate. Therefore, theblade 110 can be easily rotated, and also, vibrations and noise that can be generated due to rotation of theblade 110 can be prevented. - Hereinafter, a blade unit according to another embodiment of the invention will be described.
FIG. 12 shows a blade unit according to another embodiment,FIG. 13 is an exploded perspective view showing a configuration of the blade unit ofFIG. 12 , andFIG. 14 is a cross-sectional view of the blade unit cut along a line B-B ofFIG. 12 . - Referring to
FIGS. 12 ,13, and 14 , ablade unit 200 may include ablade 210, abuffer member 220, amotor 240, arotation transfer member 250, and aguide hole 271 to guide therotation transfer member 250. Comparing to theblade unit 100 ofFIG. 3 , theblade unit 200 may further include theguide hole 271 to guide therotation transfer member 250, and the remaining components of theblade unit 200 may be the same as those of theblade unit 100 ofFIG. 3 . Hereinafter, descriptions about the same components of theblade unit 200 as those of theblade unit 100 ofFIG. 3 will be omitted, and theblade unit 200 will be described based on differences from theblade unit 100 ofFIG. 3 . - The
guide hole 271 may be disposed in apartition wall 270 forming theoutlet 21 in the inside of thebottom panel 20. Theguide hole 271 may be formed on a straight line on which afirst coupling member 211 of theblade 210 and therotation transfer member 250 are aligned. Theguide hole 271 may function as a passage through which themotor 240 is connected to theblade 210. - The
guide hole 271 may guide the position of therotation transfer member 250 connected to themotor 240 when themain body 10 or thebottom panel 20 is installed non-horizontally. Therotation transfer member 250 may be supported by theguide hole 271 when themain body 10 or thebottom panel 20 is maintained non-horizontally. Accordingly, therotation transfer member 250 may be maintained at a predetermined position even when themain body 10 or thebottom panel 20 is installed non-horizontally. Also, since therotation transfer member 250 is supported by theguide hole 271 when themain body 10 or thebottom panel 20 is installed non-horizontally, theguide hole 271 can reduce load transferred to therotation transfer member 250. Accordingly, it is possible to prevent theblade unit 200 from being damaged, while improving the reliability of theblade unit 200. - Hereinafter, a modified example of the
blade unit 200 will be described. -
FIG. 15 shows a modified example of theblade unit 200 ofFIG. 12 , andFIG. 16 is an exploded perspective view showing a blade unit ofFIG. 15 . - Referring to
FIGS. 15 and 16 , ablade unit 201 may include theblade 210, thebuffer member 220, themotor 240, therotation transfer member 250, theguide hole 271, and agear unit 280. Comparing to theblade unit 200 ofFIG. 14 , theblade unit 201 may further include thegear unit 280, and the remaining components of theblade unit 201 may be the same as those of theblade unit 200 ofFIG. 14 . Hereinafter, theblade unit 201 will be described based on differences from theblade unit 200 ofFIG. 14 . - The
gear unit 280 may be configured to transfer greater torque to theblade 210 although thesame motor 240 is used. According to an example, thegear unit 280 may include afirst gear 281 and asecond gear 282. Thefirst gear 281 may connect arotation shaft 281a to themotor 240. Thesecond gear 282 may couple arotation shaft 282a with theblade 210. Thesecond gear 282 may have a greater diameter than thefirst gear 281. - The
first gear 281 may be interlocked with thesecond gear 282. According to the above-described configuration, thesecond gear 282 can transfer greater torque to theblade 210 than thefirst gear 281. Thegear unit 280 may generate great torque although the same motor is used, so as to reduce vibrations and noise that are generated upon use of thehigh capacity motor 240. - Hereinafter, a blade unit according to another embodiment of the invention will be described.
FIG. 17 shows a blade unit according to another embodiment of the invention. - Referring to
FIG. 17 , ablade unit 300 may include ablade 310, abuffer member 320, amotor 340, and arotation transfer member 341. Comparing to theblade unit 100 ofFIG. 3 , therotation transfer member 341 of theblade unit 300 is different from the corresponding one of theblade unit 100 ofFIG. 3 , and the remaining components of theblade unit 300 are the same as those of theblade unit 100 ofFIG. 3 . Hereinafter, theblade unit 300 will be described based on differences from theblade unit 100 ofFIG. 3 . - The
rotation transfer member 341 may be provided as a rotation shaft extending from one end of themotor 340. Unlike theblade unit 100 ofFIG. 3 , in theblade unit 300, therotation shaft 341 may be directly coupled with thebuffer member 320. Therotation shaft 341 may be inserted into abuffer groove 323 formed in thebuffer member 320. Accordingly, therotation shaft 341 may rotate due to a rotatory force transferred from themotor 340 in the state in which it is inserted into the buffer groove 232, and transfer the rotatory force to theblade 310. - It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention, as defined by the appended claims.
Claims (11)
- An indoor unit of an air conditioner, comprising:a main body (10) including an outlet (21); anda blade unit (100) coupled with the main body (10), the blade unit (100) being rotatable at the outlet (21),wherein the blade unit (100) comprises:a rectangular blade (110) having longitudinal side edges and end edges and a coupling member (111) formed with the rectangular blade (110);a motor (140) including a rotation transfer member (151, 152, 341), and configured to generate a force driving the rectangular blade (110); anda buffer member (120) coupled with the coupling member (111) of the rectangular blade (110), and covering a part of the rotation transfer member (151,152, 341),wherein the coupling member (111) includes a coupling groove (112) disposed on a rotation axis of the rectangular blade (110) andwherein a part of the buffer member (120) is inserted into the coupling groove (112), the indoor unit being characterised in that the coupling groove (112) is disposed between the end edges of the rectangular blade (110).
- The indoor unit according to claim 1, wherein the coupling member (111) is formed on the rectangular blade (110) in a manner to not protrude beyond the end edges of the rectangular blade (110).
- The indoor unit according to claim 1, wherein the coupling member (111) includes an inclined portion provided to be inclined with respect to a surface of the rectangular blade (110).
- The indoor unit according to claim 1, wherein the coupling member (111) includes an upper outer portion provided to be inclined with respect to an upper surface of the rectangular blade (110).
- The indoor unit according to claim 1, wherein the coupling groove (112) of the coupling member (111) for receiving the part of the buffer member (120) is disposed at a position spaced apart from a center of one of the end edges of the rectangular blade (110).
- The indoor unit according to claim 1, wherein:an inside of the coupling groove (112) is provided in a polygonal shape, andthe part of the buffer member (120) has a shape corresponding to the polygonal shape of the coupling groove (112) to be inserted into the coupling groove (112).
- The indoor unit according to claim 1, wherein the buffer member (120) is made of a material having a restoring force.
- The indoor unit according to claim 1, wherein the coupling member (111) is a first coupling member (111) connected to the rotation transfer member (151, 152, 341) and disposed near a first of the end edges of the rectangular blade (110);
the blade unit (100) further comprising:a second coupling member disposed near a second of the end edges of the rectangular blade (110) to face the first coupling member (111), and connected to the main body (10) such that the rectangular blade (110) is rotatable; anda third coupling member (119) positioned between the first coupling member (111) and the second coupling member, andwherein the third coupling member (119) couples the rectangular blade (110) with the main body (10) such that the rectangular blade (110) is rotatable. - The indoor unit according to claim 8, wherein the third coupling member (119) comprises:a protrusion (119c) coupled with a part of the main body (10); anda buffer part (119b) made of a material having a restoring force, and surrounding the protrusion.
- The indoor unit according to claim 1, wherein the coupling groove (112) includes a fixing hole (113) formed in a surface of the coupling groove (112) into which at least some of the part of the buffer member (120) is inserted in a manner that the part of the buffer member (120) is disposed on an inner side of the rectangular blade (110) with respect to the coupling member (111) in a direction of the rotation axis of the rectangular blade (110).
- The indoor unit according to claim 1, wherein:
the rotation transfer member (151, 152, 341) comprises:a rotation shaft (151) extending from the motor (140), and configured to transfer a rotatory force generated by the motor (140); anda connection member (152) coupled with the rotation shaft (151) at a first end, and coupled with the buffer member (120) at a second end, and the connection member (152) comprising:a connection body part (152a) coupled with the rotation shaft (151), anda connection protrusion (152b) extending from the connection body part (152a), and coupled with the buffer member (120), andthe connection member (152) is made of a material having stiffness that is lower than stiffness of the rotation shaft (151).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22150375.8A EP3998430A1 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20140024564 | 2014-02-28 | ||
KR1020140155572A KR102335152B1 (en) | 2014-02-28 | 2014-11-10 | Indoor unit of air-conditioner and blade unit applying the same |
PCT/KR2015/001808 WO2015130073A2 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
EP15754617.7A EP3115709A4 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15754617.7A Division EP3115709A4 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22150375.8A Division-Into EP3998430A1 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
EP22150375.8A Division EP3998430A1 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3783273A1 EP3783273A1 (en) | 2021-02-24 |
EP3783273B1 true EP3783273B1 (en) | 2022-02-16 |
Family
ID=54243407
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22150375.8A Pending EP3998430A1 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
EP20201610.1A Active EP3783273B1 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
EP15754617.7A Withdrawn EP3115709A4 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22150375.8A Pending EP3998430A1 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15754617.7A Withdrawn EP3115709A4 (en) | 2014-02-28 | 2015-02-25 | Indoor unit of air conditioner and blade unit applied to same |
Country Status (6)
Country | Link |
---|---|
US (1) | US10746456B2 (en) |
EP (3) | EP3998430A1 (en) |
KR (3) | KR102335152B1 (en) |
CN (2) | CN110986158B (en) |
DE (1) | DE202015009877U1 (en) |
ES (1) | ES2909737T3 (en) |
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CN113503584B (en) * | 2021-07-30 | 2022-11-18 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
CN114087686B (en) * | 2021-11-24 | 2022-12-02 | 华祥(中国)高纤有限公司 | Energy-saving type temperature and humidity automatic adjusting air conditioning unit |
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- 2015-02-25 US US15/122,407 patent/US10746456B2/en active Active
- 2015-02-25 EP EP20201610.1A patent/EP3783273B1/en active Active
- 2015-02-25 DE DE202015009877.0U patent/DE202015009877U1/en active Active
- 2015-02-25 CN CN201911353219.9A patent/CN110986158B/en active Active
- 2015-02-25 ES ES20201610T patent/ES2909737T3/en active Active
- 2015-02-25 EP EP15754617.7A patent/EP3115709A4/en not_active Withdrawn
- 2015-02-25 CN CN201580011189.7A patent/CN106662358B/en active Active
-
2021
- 2021-11-30 KR KR1020210168726A patent/KR102458329B1/en active IP Right Grant
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2022
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Also Published As
Publication number | Publication date |
---|---|
ES2909737T3 (en) | 2022-05-10 |
EP3115709A2 (en) | 2017-01-11 |
KR102646110B1 (en) | 2024-03-12 |
CN110986158B (en) | 2021-07-13 |
CN110986158A (en) | 2020-04-10 |
KR20220147057A (en) | 2022-11-02 |
KR102335152B1 (en) | 2021-12-06 |
KR102458329B1 (en) | 2022-10-25 |
EP3998430A1 (en) | 2022-05-18 |
CN106662358B (en) | 2020-01-21 |
US10746456B2 (en) | 2020-08-18 |
KR20150102674A (en) | 2015-09-07 |
CN106662358A (en) | 2017-05-10 |
US20170067681A1 (en) | 2017-03-09 |
EP3115709A4 (en) | 2018-01-24 |
DE202015009877U1 (en) | 2020-12-21 |
EP3783273A1 (en) | 2021-02-24 |
KR20210151736A (en) | 2021-12-14 |
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